Miner&#39;s blasting battery



I. S. BEENECK.

MINERS BLASTING BATTERY.

APPLICATION FILED JULY 10,1919.

1&08435" Patented Mar. 7, 1922.

In re zilar'x @R/wr/ l are portable;and the object of the same is ,U TEQ STATES PATIENT OFFICE:

aosnrirs. :nnnnnox, or NANTICOKE, PENNSYLVANIA.

Mmmas BLASTING BATTERY.

. Application and my 10,

to produce a-battery for blasting-purposes and the like, composed of a number of cells mounted within a casing which is as near as lpossible water proof. nother object is to render the top or coverofthe box or casing readily removable, carrying with it the binding posts for the line wires, but to lead; the connecting wires from these posts to the elements of the battery in such a way that the'cover' may be raised or moved aside without difficulty and that when in position no wires will cross each other.

Another object is to produce an improved form of clip. for the conductor terminals. These and other objects are carried out in the manner herein described and shown in the drawings, wherein:

Figure 1 is a perspective view of this device closed and ready for use.

Figure 2 is a vertical section on the line 2-2 of Figure 1.

Figure 3 is a plan view with the cover removed, being a diagram of the wiring.

Figure 4 is a perspective detail showing how the cover might be raised, and perhaps hin ed to the body.

he body of the battery casing is a box comprising a bottom 1, a frontwall 2, and side and rear walls 3 and 4, the top of the box being normally open. On the upper edges of its walls are packing strips 5 overlying these in turn is a top or cover 6 which may be detachably secured in place by any suitable fastening means such as the screws 7, and which cover has a handle 8 so that the entire casing and its contents may be carried readily when the top is fastened down on the box or body. The materials and sizes of parts are not essential but I have shown the casing herein as large enough to contain four dry cells. a

The cells are indicated at 10 and may be of any desired type. The upper end of.

each pole of the cell carries a clip best'secn Specification of Letters Patent.

purpose.

Patented Mar. 7, 1922.

1919. Serial No. 309,948.

in Figure 4. It is composed of wire bent into an eye ll-which may be fastened in any suitable manner on the battery pole,-

and from this eye the wires are carried upward into a hump 12, thence they are bent into two spring coils 13 standing about parallel, thence the wires diverge slightly and are depressed as at '14 on opposite sides of the hump, the coils giving the depres sions an upward tendency so that the conductor'terminal indicated at 16 will be engaged betweenthe humped stretches and the depressed stretches, and finally the two depressed portions, are carried Horizontally over-the eye into a thumb piece 15 which may well constitute the center of the stretch of wire of which the entire clip is composed and will, therefore, integrally connect said two depressions. The numeral 16 designates the terminal of each short stretch of wire 17 connecting the cells 10 in a manner best seen in Figure 3 wherein the cells are wired in series. A longer wire 18 leads from one endmost cell of the series to the binding post 19 which is mounted through the top or cover 6 preferably near the rear edge of the latter as seen in Figure 1. From the .companion binding post 20 another longer stretch of wire 21 leads to one side of a circuit closer in the form of a push button 22 which is mounted on the front wall 2 of the casing, and from the other side of this push button a short wire 23 leads to the cell at the other end of said -series.

I have described the wiring with some particularity because it has an important As will be seen from Figures 3 and 4, no two wires cross each other. The line wires 28 and 29 connect with the binding posts 19 and 20 and lead thence, possibly. through a coil or other sparking device, to the point where the current is to be delivered, as for instance to a blasting charge which is to be ignited by pressing the button. But the wiring within the portable battery forming the gist of this invention is such that the cover may be removed entirely by withdrawing the fastening screws 7 and brought over and hung over the front wall 2 as seen in Figure 3, and

then access to any or all of the cells is most convenient in case they need attention or replacement. It is even possible to hinge the cover as seen in Figure 4. The length of the wires 18 and 21 should, therefore, be

such that the cover has freedom of movement when raised, and yet when the cover is closed these wires lie alongside the cells and do not cross the shorter wires 17 and 28, and in fact no wire need cross any of the clips on the batteries. Therefore, 1f this device as a whole should be carried a long distance by hand, or on horseback or bicycle, or in a motor vehicle or railway train where the vibration is considerable, there would be no opportunity for the insulation of a wire to be worn by contact with any other wire or any other object, because there is no such contact. The cells may be prevented from moving about in the box by packing them in sawdust or similar material, and Where I have spoken herein of cells I desire it to be understood as including any number or form of dry cells or equivalent elements for the generation of electricity and especially for an electric spark for igniting purposes.

Having thus described the invention, what is claimed as new is:

A portable blasting battery. including a casing,- a cover closing'the casing, fastening devices detachably securing the cover in position, bindinv posts fixed upon the cover, batteries within the casing, a circuit closer mounted upon a wall of the casin and circuit wires having their outer en s connected to said binding posts respectively JOSEPH S. BEENECK. [1,. 5.] 

